Loom



June 1o, 1930.

HA A. DAVIS 1,763,613

H. A. DAVIS Q LOOM June l0, 1930.

:s'sheets-sheet 2 /A/VENTOR.'

Filed Aug. 6, 1929 2K www Patented .lune 10, 1930 i STATI-3s ALTENTOFFICE' ARRY apar/71s, or fiori-:13Min, MAssacnnsnbrs, nssrGNoga To,Daarna Conform- TIoN, or HOPED'ALE, MASSACHUSETTS', Aoonr'onATIoN orMAINE- applicatifs tied August e', 1929. Serial' No. 383,84.

rThis invention relates to looms and more especially to looms whereinthe operative condition of the loom is changed from timeY to time, andis directed to shuttle feeler control mechanism.

ft is now the ordinary practice to provide looms and especially those ofthe filling replenishing type, with a shuttle feeler foru determiningwhether or not the shuttle is properly boxed preceding fillingreplenishment. ln such looms it has been the practice heretofore to movethe shuttle feeler to shuttle feeling position by a transverse or rockshaft when such shaft is actuated by a filling detecting mechanism andindicates a fault in the filling. The filling detecting mechanism hasusually comprised a filling feeler which on detection of substantialexhaustion of filling causes the rock shaft to be actuated 2o through atrain of mechanism under feelerV control, and upon suchactuation of thetrans,-

verse or rocky-shaft the shuttle feeler whichhas been directly connectedto the rock shaft isl moved to its shuttle feeling position andfrequently` reaches such position before thev shuttle has completed itspicking movement, with the result that t-he shuttle feeler frequentlystrikes the shuttle during its picking movementwith injurious effect tothe shuttle so and probablebreakage of parts. Y

Since the purpose ofthe shuttle feeler is to determine whether theshuttle has been properly boxed for' the transfer of a filling carrierto the shuttle, this premature movement of the purposes of the presentinvention is to provide means for moving the shuttle feeler to itsshuttle feeling position'subsequent to a detection of filling faultafter an interval of time .suflicient to permit the shuttle to completeits picking movement, so that when the shuttle feeler is moved to itsshuttle feeling position, it is prevented from engageriientv Vwith theshuttle during its picking movement.

the shuttle feeler is unnecessary, and one ofy tion -may be delayeduntil afterthe shuttle has completed its picking movement, so that' alldanger of injury to the shuttle is avoided;

The invention and novel features thereof will best be made clear fromthe following description and the accompanying drawings of one good formor embodiment thereof.

In the drawings:

Fig. l is a perspective view of portions of a loom containing thepresent invention;

Fig., 2 is an enlarged perspective detail' showing the means for lockingthe shuttle feeler to its operating means upon-rotative movement of thetransverse or rock shaft;

' Fig. 2a is an enlarged detail, partly in section, showing a portion ofthe operating arm of the feeler control mechanism provided with a slotor opening by which it may be lock-ed to thefeeler; Y

Fig. 3 is a side elevation, with partsin'section, showing portions' of aloom with the? present invention associatedl therewith; and

Fig. 4 is a sectional detail showing the meansl for locking the shuttlefeeler to itsV i control mechanism.

rEhe loom frame l and lay `Qmay be of usual construction, and mounted insuitable Y bearings 3 on the loom lframe is the transverse orr'ock'shaft Ll to which is secured an arn 5 extending upwardly therefromand having pivotally connected thereto an actuator 6, the rear endportion 7 of which is adapted to be Vengaged by an operating mem,- `ber8 when the filling feeler detects 'substantial exhaustion of lillina'inthe shuttle. The operating member 8 may bel constituted as the usual camfollower or a part connected" therewith and'is pivoted at 9,fr'om whichextends the arm 10 having a shoe 11 which rides upon the usual cam'12 onthe under or cam shaft 18; Y i

As hereinbefore noted,- the rocking movement of therock shaft is undercontrol' of a" filling detector which in the present instance ofthei'nvention is typified as a feeler` 14 mounted upon the feeler stand15 for move'- ment towards and fromthe front of the loom and inadirectionlongitudinallyof the shuttle', as more fully andcompletelyexplained'in 1,309,226, dated July 9, 1919. The feelermechanism, however, may be of any usual type now well-known and furtherexplanation of the particular mechanism shown in the drawings will beunnecessary as it is described in the Stimpson patent to which referencemay be had. The construction is such, however, that when the feeler 14side slips, or indicates substantial exhaustion of filling in theshuttle, it will cause rocking movement of the roclr` shaft 4 asdescribed in the Stimpson patent.

The lay 2 has the usual shuttle boxes 16, one at each end of the lay,and on the detecting side of the loom the front wall of the shuttle boxis provided with an opening 17 through which the feeler may pass ondetecting beats to feel for the filling in the shuttle. The parts so fardescribed may be of any or usual construction.

The shuttle feeler 18 is pivotally mounted at 19 on a bracket 2O securedto the loom frame, and extending laterally from the feeler is a pin orsimilar device 21 by which the dog 22 of the replenishing mechanism maybe moved to and from its operative position, as usual. The dog 22 ispivotally connected to an arm 23 extending downwardly from the hub 24 ofthe transferrer 25, and when the dog 22 is lifted into dotted lineposition, Fig. 3, it may be engaged by a bunter 26 mounted on the lay toeffect transfer of a filling carrier supplied with filling to theshuttle.

The shuttle feeler may if desired be provided with a filling partei1 topart or cut the filling thread leading from the depleted filling carrieror bobbin in the shuttle, and one form of such partei' is shown, but asit forms no special part of the present invention and may or may not beemployed, and is also well-known in the art, further description thereofappears unnecessary.

The shuttle feeler controlling mechanism for moving the shuttle feelerto its shuttle feeling position at a time subsequent to the rockingmovement of the rock shaft may be variously contrived but as hereinshown it comprises an operating arm 27 which is loosely mounted on thetransverse or roel shaft 4 and its rearwardly extending end portion isprovided with a shoe 28 which engages a cam 29, as indicated in Figs. 1and 3. The cam 29 is shown as mounted on the under or cam shaft 13 as aconvenient means for actuating the operating arm, the result being thatduring the loom operation the arm 27 will be continuously actuated, andthe present invention contemplates that the shuttle feeler be connectedwith the operating arm in order to move the shuttle feeler into itsrearward feeling position following an indication of lling fault by thefeeler.

Loosely mounted upon the transverse or rock shaft 4 is a shuttle feelermember 30 which depends downwardly from the rock shaft 4, as shown, andits lower arm 31 extends rearwardly into engagement with a projection orpin 32 extending from the feeler 18. In order that the connectionbetween the feeler and rearwardly extending arm 3l may be yielding to adegree, the arm 31 has hung thereon a jaw member 33 which is normallyunder the influence of a spring 34 to hold the aw 35 of the j aw memberin engagement with the projection or pin 32 extending from the feeler,the construction being such that should the arm 31 be moved upwardly, inthe present instance of the invention, the shuttle feeler will be movedto its shuttle feeling position.

As above noted, the member 31 thus connected to the shuttle feeler isloosely mounted upon the transverse or rock shaft 4 and is consequentlyinactive to effect any movement of the shuttle feeler to shuttle feelingposition by the operating arm 27 during normal weaving operations, sothat while the operating arm 27' is continuously in operation duringweaving, the shuttle feeler will remain in its frontward or non-shuttlefeeling position. lVhen, however, the filling feeler has indicatedsubstantial exhaustion of filling in the shuttle and the rock shaft 4 isconsequently actuated, the present invention provides that the shuttlefeeler member shall be connected for operative movement to the operatinarm 27 and consequently move the shuttle feeler to its shuttle feelingposition after a lapse of time sufficient to permit the shuttle tocomplete its picking movement.

rJhe means to this end may be variously contrived, but as shown in thepresent instance of the invention it consists of a lock or connectingdevice whereby on rocking movement of the rock shaft the shuttle feelermember will be operatively connected to the operating arm 27 andconsequently moved to its shuttle feeling position.

The operating arm 27, in the present instance, is provided with a slotor opening 36, as indicated in Figs. 1 and 2, which is adapted to beengaged by a locking device carried by the shuttle feeler member tothereby connect the operating arm 27 to the shuttle feeler.

As shown more clearly in Figs. 2 and 4, the downwardly extending portion3() of the shuttle feeler member is bifurcated, as indicated at 37, andmounted in the bifurcation 37 is a lock 38 pivotally mounted at 39 and 1having its upper portion 40 extending laterally therefrom.

Mounted on the transverse or rock shaft 4 is a lock actuator 41 which issecured to the rock shaft for rotative movement therewith by suitablemeans, such, for instance, as the bolt 42, Figs. 2 and 4. The lower edgeportion of the lock actuator 41 normally rests upon the lateralextension 40 of the lock, which in normal position is shown by fulllines'in Figl-- 4, the construction being such that upon rotativemovement of the trans-` verse or rock shaft 4y the' lock actuator 41will beturned as indicated in Fig. 2 to cause the lower edge portion 43thereof to ride upon the lateral projection 40 of the lock and swing'itabout its pivotal mounting into engagement with the slot 36 of theoperating arm 27, thereby operatively connecting the shuttle feelerVwith the operating arm.

Since the lock is actuated or moved into locking position with relationto the operating arm by rotative movement of the transverse or rockshaft 4, the operative engagementV of the Ylock with the operating armis effectedV after the'lapse of sufficient time to permit the shuttle tocomplete its picking movement, so that the shuttle feeler is moved intoshuttle feeling position when the shuttle has come to rest, therebyobviating any dangerV of injurious contact of the shuttle feeler withthe shuttle during its picking movement. y

Since the shuttle feeler member 31 has its portion loosely mounted onthe transverse or rock shaft 4 it can no longer act under the impulse ofthe spring 34 as usual to return the rockshaft to its normal positionafter an indication of filling exhaustion, and to effect this desiredoperation the lock actuator 4:1 liasits toe portion 44 extendedrearwardly, interposed between the loom frameorbreastbeam 45 and thectoeof the actuatorY is a spring 46 which,on backward movement of the camfollower, turns the-rock shaft 4 to itsnormal position. Y

The loosely mounted operating arm 27 and the loosely mounted shuttlefeeler member 31 are shown in the present instance of the invention asmaintainedr in their associated relation between a collar 47, secured tothe transverse or rock shaft 4 by means such for instance as the bolt48, and the operating member 41.

Referring to Fig. 1 it will be noted that the cam 12 for operating thecam follower or weft'hammer and the cam 29 for actuating the operatingarm-27 aredisposed at angular relation, such that the cam-follower willeffect rotative movement of the transverse or rock shaft 4 before theoperating arm 27 moves in a direction to actuate the shuttle feeler,with the result that there is a delay or lapse of time suiii'cient topermit the shuttle to complete its picking movement before the shuttlefeeler is moved rearwardly into its shuttle feeling position, therebyobviating all danger o f contact ofthe shuttle feeler with the shuttle-during its picking movement;

The described mechanism presents a good practical formV of the inventionbut obviously the train of mechanism for operating the shuttle feelerand moving it to its shuttle feeling positiony only after the shuttlehas completed its'` picking movements may be variously modified withoutdeparting from the true scope of the present invention.

lt will be noted that the cam 29 and the operating arm orlev'er 27act-direct to move the shuttle feeler to shuttle feeling'positionindependent of the rockshaft, thus'remedying the objections heretoforeexperienced due to springing of parts at ,the left side of the loom andtorsional give of the rockshaft. Also should the shuttle feeler detectan improperly boxed shuttle by the ordinary construction now commonlyemployed, the shuttle feeler spring comes into play by the frontwardmovement of the shuttle feeler as the lay beats up, with the result thatthis strain is transmitted through the rock-shaft to the parts at theopposite side of the loom causing the parts to become loose and oftenrequiring a complete resetting of the whole train of Vmechanism. t Withthe present invention,

however, no strain whatever is transmitted to the parts at the fillingfeeler side of the loom since the shuttle feeler is moved to its shuttlefeeling position by means operating independent of the rock-shaftmovement.

What is claimed is:

1. in a lo-om, the combination of a lling detector for indicating afault in the filling conditions, a shuttle feeler to feel for theshuttle and determine if it is properly boxed, means connected to theshuttle feeler for ioving it to feeling positionj'an actuator for saidmeans normally disconnectedtherefrom, and devices for connecting saidineans'tofits actuator on detection of a filling fault that the shuttlefeeler may be movedto its feeling position'by theactuator and beprevented from engagementwith the shuttle during its picking movement'.Y i y 2. In a loom,the combination of a filling detector for indicatinga fault in the filling condition, a shuttle feeler to feel for theshutand determine if it is properly boxed, means connected to theshuttle feeler for moving it toand from `feeling position, acontinuously operating actuator for said means normally disconnectedtherefrom', and locking devices rendered eective on detection of afilling fault for locking said means to the continu*- ously operatingactuator that the shuttle feeler may be moved to feeling po-sition bythe actuator.

3. In a loom, the combination of aV feeler to detect the condition ofAthe filling in the shuttle, a shuttle feelerv at the opposite side ofthe loom to feel for the shuttle and determine if it is properly boxed,means connected tothe shuttle feeler for moving it to feeling position,an' actuator for said means normally disconnected therefrom, a cam fortle following an indication of a filling fault operating the' actuator,and a locking device leo together that the shuttle feeler may then bemoved to shuttle feeling position.

4. In a loom, the combination of a filling detector for indicating afilling fault, a shaft 5 actuated on the occurrence of a fault in thefilling, a shuttle feeler actuating means for moving the shuttle feelerto shuttle feeling position, and a lock for connecting the shuttlefeeler to its actuating means on the occurrence of a fault in thefilling that the shuttle feeler may thereafter be moved to shuttlefeeling position by its actuating means and prevented from engagementWith the shuttle during its picking movement.

5. In a loom, the combination of a filling feeler to feel for thefilling in the shuttle, a rock shaft which is actuated when the feelerdetects depletion o-f the filling in the shuttle to a predeterminedextent, a shuttle feeler to feel for the shuttle and determine if it isproperly boxed, means normally disconnected from the feeler andoperating independent of the rock shaft movement for moving the shuttlefeeler to shuttle feeling position, and a lock rendered effective byrock shaft movement for connecting the shuttle feeler to its operatingmeans.

6. In a loom, the combination of a filling feeler to feel for thefilling in the shuttle on detecting beats, a rock shaft extendingtransversely of the loom, means for rocking the rock shaft renderedoperative upon detection of substantial exhaustion of the filling in theshuttle, a shuttle feeler at the side of the loom opposite the fillingfeeler, means continuously operating to effect movement of the shuttle-feeler to shuttle feeling position, and means for connecting theshuttle feeler with its operating means only when the rock shaft isrocked on detection of substantial exhaustion of filling in the shuttleby the filling feeler.

7. In a loom, the combination of a filling feeler, a rock shaft, meansfor rocking the rock shaft on detection of approaching exhaustion offilling, a shuttle feeler, means operating independent of rock shaftmovement for moving the shuttle feeler to shuttle feeling position, andmeans rendered effective by rock shaft movement for connecting theshuttle feeler to its operating means.

8. In a loom, the combination of a filling feeler, a rock shaft, meansfor rocking the rock shaft on detection of approaching exhaustion offilling, a shuttle feeler, means operating independent of rock shaftmovement for moving the shuttle feeler to shuttle feeling positionsubsequent to the rock shaft movement, and means rendered eective byrock shaft movement for connecting the shuttle feeler to its operatingmeans.

9. In a loom, the combination of a filling feeler, a transverse rockshaft and operating means therefor controlled by the filling 65 feeler,a shuttle feeler, an arm loosely mounted relative to the rock shaft,means for operating the arm to move the shuttle feeler to shuttlefeeling position after the shuttle has completed its picking movementthat the shuttle feeler may not engage the shuttle during its pickingmovement, and means rendered effective by the rock shaft movement forconnecting the shuttle feeler to the said arm.

l0. In a loom, the combination of a filling feeler, a rock shaftcontrolled in its rocking movement by the filling feeler, a shuttlefeeler, means operating independent of rock shaft movement for movingthe shuttle feeler to shuttle feeling position, comprising an armloosely mounted on the rock shaft, means for moving said arm in adirection to move the shuttle feeler to feeling position subsequent tothe rock shaft movement to enable the shuttle to complete its pickingmovement before the shuttle feeler reaches shuttle feeling position, andmeans rendered effective by the rock shaft movement to connect theshuttle feeler to the said arm.

l1'. In a loom of the character described, 90 the combination of afilling feeler, a rock shaft controlled in its rocking movement by thefilling feeler, a shuttle feeler, means loosely connecting the shuttlefeeler With the rock shaft, an operating arm loosely mount- 95 ed on therock shaft and normally disconnected from the shuttle feeler, and a lockactuated by rock shaft movement to lock the shuttle feeler to saidoperating arm.

l2. In a filling replenishing loom, the com- 100 bination of fillingreplenishing mechanism, a filling feeler, a rock shaft extendingtransversely of the loom, means under control of the filling feeler forrocking said shaft, a shuttle feeler, a member connected to the shuttlefeeler and loosely mounted on the rock shaft, an operating arm looselymounted on the rock shaft for operating said member to move the shuttlefeeler to shuttle feeling position, means for moving the arm in adirection to place the shuttle feeler in shuttle feeling positionindependent of the rock shaft subsequent to rock shaft movement, and alock actuated by rock shaft movement for locking the said member to theoperating arm.

13. In a filling replenishing loom, the combination of fillingreplenishing mechanism, a filling feeler, a rock shaft extendingtransversely of the loom, means under control of the filling feeler forrocking said shaft, a shuttle feeler, a member connected to the shuttlefeeler and loosely mounted on the rock shaft, an operating arm looselymounted on the rock shaft for operating said member to move the shuttlefeeler to shuttle feeling position, means for moving the arm in adirection to place the shuttle feeler in shuttle feeling positionindependent of the rock shaft subsequent to rock: shaft movement, a

lock actuated by rock shaft movement for locking the said member to theoperating arm, and means for rendering the replenishing mechanismoperative through shuttle eeler movement.

14. In a filling replenishing loom, the combination of replenishingmechanism7 a filling eeler7 a transverse rook shaft, means under controlof the Jeeler for rocking the shaft, a shuttle feeler,V a member looselymounted on the rock shaft and connected to the feeler, an operating armloosely mounted on the rock shaft for moving` the shuttle feeler toshuttle feeling position, a cam for operating the arm, a locking devicebetween said member and arm normally out of locking position, and meanscarried by the transverse rook shaft for throwing the locking deviceinto locking position to connect the member Vand arm upon rockingmovement of the rock shaft.

In testimony whereof, I have signed my naine to this specification.

i HARRY A. DAVIS.

